HJSIL® 300 is a kind of hydrophilic fumed silica with a specific surface area of 300 m2/g. It’s high purity white colloidal powder.

Properties

Used as anti-settling, thickening, anti-sagging agentImprovement of free flow and anti-caking characteristics of powdersRheology and thixotropy control of liquid systems, binders, polymers, etc.Reinforcement filler in elastomersExcellent transparency in unsaturated polyester resins

TECHNICAL DATA

Properties and test methods

Unit

Typical Value

Standardization

Specific surface area (BET)

m2/g

300 ± 25

GB/T10722

pH value (in 4% dispersion)

3.6 ~ 4.5

GB/T1717

Loss on drying (2 hours at 105°C)

Wt%

≤ 1.5

GB/T5211.3

Loss on ignition(2 hours at 1000°C, based on material dried for 2 hours at 105°C)